Table of Contents 1. Primary Key 2. Unique Key 3. Foreign Key 4. Composite Key 5. Candidate Key 6. Super Key 7. Alternate Key 8. Surrogate Key 9. Summary 1.…
Functions in databases allow you to encapsulate reusable logic, perform computations, and return results. This guide covers how to write functions in both SQL Server and PostgreSQL, including examples, advanced…
Table of Contents Introduction Step 1: Understanding the Problem Step 2: Setting Up the Tables Step 3: Using a Cursor to Loop Through Data Step 4: Explanation of the Code…
Table of Contents Introduction Why the Ordinal Enhancement Matters New Ordinal Enhancement in SQL Server 2022 Syntax of STRING_SPLIT() with Ordinal Example of STRING_SPLIT() with Ordinal Output Explanation Conclusion Introduction…
Table of Contents Introduction to Triggers Types of Triggers in SQL Server DML Triggers AFTER Triggers INSTEAD OF Triggers DDL Triggers Logon Triggers Advantages of Triggers Limitations of Triggers Best…
Handling date conversions in SQL Server is a critical task when working with different regional date formats, data transformations, and output formatting. Whether you are converting a string to a…